Should You Serve Markdown to AI Agents? llms.txt, Accept: text/markdown and What Google Actually Said

This story is from 2026-10-27. It is preserved in the archive; the latest stories are on the live feed.

There's a 2026 argument that runs roughly like this: "LLMs prefer Markdown. HTML is 80% noise. So serve Markdown to AI bots and they'll understand you better and cite you more." Half of that is true. This post separates the half that is from the half that isn't, then shows how to do it safely if yo…

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1. 2026-10-27 06:00 · DEV Community — AI
   Should You Serve Markdown to AI Agents? llms.txt, Accept: text/markdown and What Google Actually Said